[alsa-devel] [PATCH 2/5] ASoC: rt5682: Improve HP performance

[shumingf at realtek.com]

From: Shuming Fan <shumingf at realtek.com>

We change the settings while HP power-up for better performance.

Signed-off-by: Shuming Fan <shumingf at realtek.com>
---
 sound/soc/codecs/rt5682.c | 32 +++++++++++++++++++++++++++++---
 sound/soc/codecs/rt5682.h | 14 ++++++++++++++
 2 files changed, 43 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index 31ec7c0..bf7d910 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -1437,6 +1437,28 @@ static const struct snd_kcontrol_new hpor_switch =
 	SOC_DAPM_SINGLE_AUTODISABLE("Switch", RT5682_HP_CTRL_1,
 					RT5682_R_MUTE_SFT, 1, 1);
 
+static int rt5682_charge_pump_event(struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_component *component =
+		snd_soc_dapm_to_component(w->dapm);
+
+	switch (event) {
+	case SND_SOC_DAPM_PRE_PMU:
+		snd_soc_component_update_bits(component,
+			RT5682_HP_CHARGE_PUMP_1, RT5682_PM_HP_MASK, RT5682_PM_HP_HV);
+		break;
+	case SND_SOC_DAPM_POST_PMD:
+		snd_soc_component_update_bits(component,
+			RT5682_HP_CHARGE_PUMP_1, RT5682_PM_HP_MASK, RT5682_PM_HP_LV);
+		break;
+	default:
+		return 0;
+	}
+
+	return 0;
+}
+
 static int rt5682_hp_event(struct snd_soc_dapm_widget *w,
 	struct snd_kcontrol *kcontrol, int event)
 {
@@ -1449,8 +1471,6 @@ static int rt5682_hp_event(struct snd_soc_dapm_widget *w,
 			RT5682_HP_LOGIC_CTRL_2, 0x0012);
 		snd_soc_component_write(component,
 			RT5682_HP_CTRL_2, 0x6000);
-		snd_soc_component_update_bits(component, RT5682_STO_NG2_CTRL_1,
-			RT5682_NG2_EN_MASK, RT5682_NG2_EN);
 		snd_soc_component_update_bits(component,
 			RT5682_DEPOP_1, 0x60, 0x60);
 		break;
@@ -1723,7 +1743,8 @@ static const struct snd_soc_dapm_widget rt5682_dapm_widgets[] = {
 	SND_SOC_DAPM_SUPPLY("HP Amp R", RT5682_PWR_ANLG_1,
 		RT5682_PWR_HA_R_BIT, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY_S("Charge Pump", 1, RT5682_DEPOP_1,
-		RT5682_PUMP_EN_SFT, 0, NULL, 0),
+		RT5682_PUMP_EN_SFT, 0, rt5682_charge_pump_event,
+		SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 	SND_SOC_DAPM_SUPPLY_S("Capless", 2, RT5682_DEPOP_1,
 		RT5682_CAPLESS_EN_SFT, 0, NULL, 0),
 
@@ -1884,6 +1905,7 @@ static const struct snd_soc_dapm_route rt5682_dapm_routes[] = {
 	{"HP Amp", NULL, "Charge Pump"},
 	{"HP Amp", NULL, "CLKDET SYS"},
 	{"HP Amp", NULL, "CBJ Power"},
+	{"HP Amp", NULL, "Vref1"},
 	{"HP Amp", NULL, "Vref2"},
 	{"HPOL Playback", "Switch", "HP Amp"},
 	{"HPOR Playback", "Switch", "HP Amp"},
@@ -2616,6 +2638,10 @@ static int rt5682_i2c_probe(struct i2c_client *i2c,
 			RT5682_GP4_PIN_MASK | RT5682_GP5_PIN_MASK,
 			RT5682_GP4_PIN_ADCDAT1 | RT5682_GP5_PIN_DACDAT1);
 	regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000);
+	regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8,
+			RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA);
+	regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1,
+			RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ);
 
 	INIT_DELAYED_WORK(&rt5682->jack_detect_work,
 				rt5682_jack_detect_handler);
diff --git a/sound/soc/codecs/rt5682.h b/sound/soc/codecs/rt5682.h
index 8068140..d82a830 100644
--- a/sound/soc/codecs/rt5682.h
+++ b/sound/soc/codecs/rt5682.h
@@ -1214,6 +1214,20 @@
 #define RT5682_JDH_NO_PLUG			(0x1 << 4)
 #define RT5682_JDH_PLUG				(0x0 << 4)
 
+/* Bias current control 8 (0x0111) */
+#define RT5682_HPA_CP_BIAS_CTRL_MASK			(0x3 << 2)
+#define RT5682_HPA_CP_BIAS_2UA			(0x0 << 2)
+#define RT5682_HPA_CP_BIAS_3UA			(0x1 << 2)
+#define RT5682_HPA_CP_BIAS_4UA			(0x2 << 2)
+#define RT5682_HPA_CP_BIAS_6UA			(0x3 << 2)
+
+/* Charge Pump Internal Register1 (0x0125) */
+#define RT5682_CP_CLK_HP_MASK			(0x3 << 4)
+#define RT5682_CP_CLK_HP_100KHZ			(0x0 << 4)
+#define RT5682_CP_CLK_HP_200KHZ			(0x1 << 4)
+#define RT5682_CP_CLK_HP_300KHZ			(0x2 << 4)
+#define RT5682_CP_CLK_HP_600KHZ			(0x3 << 4)
+
 /* Chopper and Clock control for DAC (0x013a)*/
 #define RT5682_CKXEN_DAC1_MASK			(0x1 << 13)
 #define RT5682_CKXEN_DAC1_SFT			13
-- 
2.7.4